<template>
  <div>
    <h1>{{obj.a}}</h1>
    <h1>{{obj.b.c}}</h1>
    <button @click="getValue">按钮</button>
  </div>
</template>

<script lang="ts">
import { defineComponent,reactive,readonly,shallowReadonly } from 'vue'

export default defineComponent({
  setup () {
    const obj = reactive({
      a:1,
      b:{
        c:2,
      },
    });
    const roObj = readonly(obj);
    const soObj = shallowReadonly(obj);
    const getValue = () =>{
      console.log(obj.a);
      console.log(obj.b.c);
      console.log(roObj.a);
      soObj.b.c++;
      
      
      
    };

    return {
      obj,
      getValue,
    }
  }
})
</script>

<style scoped>

</style>
